Uneven tire tread wear LR tire?

AstatenateZ

So I was invistigating a weird squeak on the rear of my car over the weekend. Found it was coming from my camber arm bushing. Tightened all bolts and lubed bushing with some white lithium grease. Squeaky noise is better but still there. I can live with that, as it’s under warranty (just installed 2-3 months ago) and I can get new ones if it gets worse


My main issue here is when I jacked up my car. I noticed my left rear tire has significantly more wear on the inner side that my right rear tire. Now I am “stanced” and slammed. But I’ve never had tires look this bad just after 1500 miles. It’s at roughly 45-50% tread. While my right rear is still at probably 85-90% tread. And my front two are at about 85-90% as well. My alignment was done after I lowered car and put all suspension components on. What gives? Everything was in spec. Except my camber. But toe is what eats up tires. I’ve been in the stanced game for a while. So don’t tell me “it’s just because your cars stanced” because the other rear tire is perfectly fine.... alignment, and all coilovers, camber arms etc was done within 3-4 months ago max. Both tires have 38 psi (same as the day they were mounted) I don’t favor corners left or right more. I normally go around corners pretty quick on both sides. So idk what else it could be. I figured If alignment got knocked out of whack it would be wearing one whole side or just rear of car , etc anyone else got any ideas? Do I need to have alignment re checked? For the time being I just rotated left rear to right rear and vice versa as my wheels are staggered and can’t swap fronts to rear. Car also doesn’t pull left or right and handles just fine. Which leads me to believe toe is out of whack. Bad.

MaysEffect

how much do you weigh?

AstatenateZ

Me or the car? Lol I’m like 140 lbs soaking wet lol

MaysEffect

Since that is not an anomaly. Your camber is off...

AstatenateZ

Camber or toe? My camber is definitely off I think it’s -6 on both rear tires. But one tire is wearing way worse than the other. It also doesn’t pull in any direction. And I’ve had plenty of stanced cars with camber off, but toe on and not had crazy tread wear. Leading me to believe toe has gotten knocked out of alignment.

MaysEffect

That is camber wear. If it was toe wear, you'd see diagonal scrub marks across the tire.

The reason why it may be affecting one side more than the other, is because the wheel center-line is off in relation to the other side. You won't get an accurate reading on this unless you use the string method of measuring alignment.

Only indication you might see on a alignment diagram is the thrust angle. If the car had the toe set with a poor thrust angle. You get camber wear on one side worse than the other.

BUT to be clear. This IS camber wear, not toe wear. -6 degrees with poor thrust angle would cause this. If you weighed more,It'd probably wouldn't be as bad. Also -6 degrees is not good...period. Maybe try buying better tires, may help marginally.

MaysEffect

Also, it is possible you are scrubbing the tire on turns. But this is a problem with your control arms. It looks like you only have the adjustable camber arm and no aftermarket toe arm or no traction arm.

This will cause the tires to toe out significantly more during turns. There are too many variables here adding to you stanced situation.

Rusty

A -6 camber will definitely wear the inside of the tire. All of the cars weight for that corner is sitting on the inner thread. Like Mayeffect said, if it was toe. The wear would look different. With toe wear. You will see feathering on the edge of the thread blocks. You're running that much camber, you got to pay to play.

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jchammond

Didn’t know -6.0* was possible?

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Rusty

You do now.

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OptionZero

It's possible but even I think that's stupid unless is some VIP style ****

I still think something is off in the suspension on that side causing excessive camber when the car is in motion

I'd get an alignment from a different place to verify the measurements

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jchammond

Pretty bad when OZ says -6* camber is stupid...As with more negative camber,comes more negative toe...gotta have suspension parts to correct it.
I’d like to see an alignment sheet on this one.

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Rusty

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AstatenateZ

So should I just put my OE camber arms back on and get a realignment? The squeaking noise I originally searched for and found tire wear. Was coming from the aftermarket camber arms. The bushing towards the wheel. I lubed with white lit grease and this morning squeak is gone. But seems like something isn’t right with camber arm at least on driver (left rear side)

Completely understand “pay to play” thing. I was just curious as to why it wore so fast. Maybe 1200-1500 miles and ONLY ONE SIDE. My camber normally wore out tires bad in the inner side of tire evenly on the rear tires only. This is just one side. Making me thinking alignment or some sort of camber arm failure on that side.

It’s -5.3 and -5.4 to be exact (posted picture below) and that’s with these adjustable camber arms all the way in, they’re adjustable to -10 on my current setup. Because they’ll go out another -4 degrees

I got my alignment at Nissan... it’s the best shop around and they’re about the only place that will do it. It’s an in ground rack and other shops told me no... cause it’s “too low” lol

Here ya go, it’s -5.4 and -5.3 sorry not quiet -6 but 1/2 degree but yes! The arms are all the way in, they’ll go another -4 degrees my friend has the same arms and has -10 maybe mid -9’s but you get the point.

AstatenateZ

Here’s another pic, I swapped left rear tire to right rear and vice versa so now the new looking tire is on the “bad” side I guess you can call it that. Lol! But it’s better lighting and on the ground. There’s definitely no feathering or scrubbing from what I can tell. Just looks like inner 2 tread blocks are way more worn than any of the rest. And the other rear tire still looks new. Alignment was done 7/27 by the way. So it’s been 3 1/2 months